Classify the following as Z or E isomers.

Explanation

In the given compound, the groups attached to the first doubly bonded carbon are `-CH_3 ` and -Cl. Since -Cl is of higher atomic number than C, -Cl will get priority over`-CH_3` group. The groups attached to the second doubly bonded carbon are `-CH_2 CH_3` and -Br. `-CH_2 CH_3` is attached to doubly bonded carbon through a carbon atom. Since, Br is of higher atomic number than C, -Br will get priority over`-CH_2 CH_3` group. Thus,

Since, the groups with highest priority are on the same side, the given compound is a Z-isomer.